Back to results
US 11,778,879 B2Granted
Display device including concave/convex structure in the inorganic insulation layer
AssigneeJapan Display Inc.
InventorNobuto Managaki
Life of this patent
Estimating the term…
Abstract
A display device includes a substrate, a circuit element layer on the substrate, a display element layer on the circuit element layer, a sealing film on the display element layer, an oxide film on the sealing film, a barrier metal layer on the oxide film, and a wiring layer on the barrier metal layer, wherein a surface of the sealing film in contact with the oxide film has concave/convexities, and the barrier metal layer is formed by titanium nitride. A height of the concave/convexities of the surface of the sealing film may be less than 30 nm. A thickness of the oxide film may be 5 nm or less.
Claims16
A display device comprising:
- a substrate having a pixel region and a periphery region arranged in an outer side of the pixel region;
- display elements in the pixel region;
- a sealing film covering the display elements, the sealing film including
- a first inorganic insulation layer,
- a first organic insulation layer on the first inorganic insulation layer,
- a second inorganic insulation layer on the first organic insulation layer,
- a third inorganic insulation layer on the second inorganic insulation layer, and
- concave/convexities formed on a top surface of the third inorganic layer;
- a wiring on the third inorganic insulation layer;
- and
- a second organic insulation layer disposed between the substrate and the display elements, the second organic insulation layer overlapping both of the pixel region and the periphery region,
- wherein
- the second organic insulation layer has a first opening in the periphery region,
- the first inorganic insulation layer, the second inorganic insulation layer, and the third inorganic insulation layer extend from the periphery region and cover the first opening, and
- the first inorganic insulation layer is in contact with the second inorganic insulation layer in the first opening.
12 more elements
Dependencies are inferred from the claim text.